fdisk /dev/sda
d
p
2
w
reboot
fs_growfs /dev/sda2
https://lnx.azurewebsites.net/resizing-a-linux-vm-system-disk-in-microsoft-azure/
https://sfixer.tistory.com/entry/%EB%94%94%EC%8A%A4%ED%81%AC-%EB%B3%BC%EB%A5%A8-%EC%82%AC%EC%9D%B4%EC%A6%88-%EC%A6%9D%EA%B0%80%EC%8B%9C%ED%82%A4%EA%B8%B0
